toJson method
Implementation
Map<String, dynamic> toJson() => {
"productId": productId,
"type": type,
"title": title,
"name": name,
"description": description,
"localizedIn": List<dynamic>.from(localizedIn.map((x) => x)),
"skuDetailsToken": skuDetailsToken,
"subscriptionOfferDetails": List<dynamic>.from(
subscriptionOfferDetails.map((x) => x?.toJson())),
"oneTimePurchaseOfferDetails": oneTimePurchaseOfferDetails?.toJson()
};